Wire nipper and twister.



J. T. WBRTZ. WIRE NIPPER AND TWISTER. APPLICATION FILED rum. 19141,120,575. Patented Dec. s, 1914u i sira'rns ra "Winn Nieren ANDfrwisrnn'.

aire-,575.

Specification of Letters Patent.

Patented Dee. 8;, 1915A.

Application ledlsebriiary 5, 1,93.. Serial No. 816,727.-

y To all 'whom it may concern:

- provide Be it known that I, JoHN T. VWniirz, a citizen of the UnitedStates, and a resident of the city of New York, borough of Brookflvii,vinthe county.V of Kings and State of ew York, have invented al new and'lmroved'W'ire Nippel` and Twister, of which the following is a full,clear, and'exact deseription.

This invention relates to metal working tools and has particularreference' to means i for. gripping and twistingl wires such,i forinstance, as' are used for fastening together reinforcement means rconcrete structures,

although the use'of' the .device is not to be regardedas being limitedto the means as' herein stated. y v

Among the particular Aobjects of the inventionis to provide a nipperandl twister for securing wires which is'of a more easily controllednature with respect to the connection to and'disconnectionfrom the wire,and also with respect tothe erful rotation of the device vfor the'purpose of Atwisting the wire, than other devices now commonly used for.these purposes.

A further object vof thefinvention is to a wirel nipper andtwister-adapted to readily adapt itself to various gages or thicknessesof wires without requiring any of the parts.

scribed and claimed and illustrated in the drawings forming a part 'ofthis specifica# ytion in which like characters of reference indicatecorresponding parts in all the views, and in whichside elevation ot tivesizes and proportions, as

Figure 1 is a perspective view showing my improvement in operation; Fig.2 isa the device in the position the several parts nected to the wire tobe twisted: Fig. 3 is a similar view showing the handle brought intooperating position and the 'jaws gripped elevation of the stationary jawtogether lwith the huh in the position shown in 3.

lhe severall parts of the device may be made of any suitable materials,and the relageneral design of the mechanism, may be varied to aconsiderable eiitent` without departing roin the spirit ci the inventionlieneiii-dter more fully set forth and specically claimed.

"slight movement for ping a wire or thelike indicatedv at W, said rapidand pow.A

with ahead 1la 'anda shank 11b.

' of the otherjaw assume when being con-v well as the `lerred form ofthe invention, .l show at 10.

and -11 a pair of relatively movable jaws pivoted togetherat 12 for acomparatively the purpr-fe ofy grip- 'ire being shown in the lform ofafloop passing around a plurality of crossed r'emfl'celment rods R. Eachof the jaws is substantially T-sliaped, having a head and a shank onopposite sides of lhe pivot.The jaw 10 (which may ,be regarded asstationary with 11) is provided, thererelation to the jaw and a shank10b. It,

fore', with a head 1()a also includes a. pair of spaced lugs 13 adjacentthe pivot-12 and a pairoii ears'l/i at the end of the shank These earsare spaced from each other in parallel'planes and receive substantiallyrectangular'lug 15 'of a handle hub 16. A pivot 17 passes through theears 14 and a holeadjacent one corner of the lug 15. 'The other orvmovable jaw 11 is provided of the jaw 11 extends between the lugs 13die. The shank 11b 'is strong andstii enough to insurethe desired gripupon the wire, butby making it slightly flexible the -tool is'adaptablefor wires of different age without requiring any adjustment of di Thepivot 17 passing close to the lower rear corner vides shoulder 15adapted to upon the extreme end of the shank 11b of the movable jaw.when the handle is swung through an angle of substantially 90 degreesfrom the position shown in Fig. 2 to that 'shown in the other figures.The pivot, however, being close to the lower edge oi the lug, the canielli-fot is not materially reduced while the handle is moving finallyinto the operating position oil Fig. i3. The face4 of the shank 11b,however. acting upon the dat Allle 18' e device. through vthe lug 15thereof proact as'a cam opposite the head. 4

between them a and constitutes the means of connection with the pivot 12around4 purpose of twisting the Wires. Asa convenient and satisfactoryform of handle I show a sort of brace 19 having threaded engage- 4 nientwith the hub 16 as shown at 2Q.'

The inner or adjacent faces of the heads' a and 11a of the jaws' may' beformed-in any suitable manner for el'ective gripping ofthe wire, and Iprefer to 4io'rmeach of the faces with a 'pair of facets 21 and` QQeachpair 'of facets meeting each other ina :fiat or obtuse angle andthereby' thegrip on the wire is increased. The heads. furthermore, asseen from the front or rear, arepr'efer-4 ably drawn in'ars of 'circleshaving their center within the Vs'ha'nksand thereby the operation of thetool is made more satisfac- "tor'y than if the Tfheads were straight*The' shank 10b of the stationary jaw, .together with its ears 1 4, issufiiciently strong and 'stiff to withstand the necessary torsionalHaving thus described my invention, I claim as new and 'desire to secureby Letters 1. In a device of the character set forth,

work ready for applica-- the combination of a pair of Ishaped gripjawforthe purpose of gripping the work.

Q ;In a 'device of the character set forth, the-combinatinof a pair ofjaws, eachv of substantiallyT-shape and including ahead and a'shank, apivot connecting the jaws together for'l slight relative movement, saidpivotbeingfclose to and substantially parallel to the heads, to the endof the 'shank 'ofonejaw its head, thecam' pivot being pivot v'for thejaws, said cam with the free end of the opposite jaw, and aj handleconnected to saidcam member to cause its movementto effect opposite Intestimony whereof I have signed my name to this specification inthepresence of two slibscribing witnesses.

l JOHN T; wERTz. Witnesses Gno. L. Barman, PHrLIP D. RoLLHAUa a v.cammember connected Y i the gripping action .of the device Vand rotation'of the- 'jaws after gripping the' work.

'an axissubstantially parallel to move the hub'v through anangle'aro'und its pivot to 'cause said cam member to act vuponythe'opposite parallel to the .coperating

